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Grantees

Methane Removal

Spark is currently supporting research to advance our understanding of natural methane sinks, and study and advance the potential efficacy, safety, and governance of potential atmospheric methane removal approaches.

Exploring new potential methane removal approaches

Optimizing the Activity of Atmospheric Methane Oxidizing Bacteria (Atmmob) in Solid-Phase Bioreactors

Assessment of methods to improve the effectiveness of bacteria in bioreactors

Lisa Stein

January 2025

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December 2026

Rapid Assessment Methods for Catalysis of Atmospheric Methane

Assessment of the efficiency of a wide range of potential methane oxidizing catalysts

Adam Boies

February 2025

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January 2027

Testing Limitations to Methanotrophy on Tree Stems

Research characterizing the contribution of methanotrophs on tree surfaces to the global methane budget and investigating potential approaches to enhance that sink

Vincent Gauci, James McDonald, and Yin Chen

October 2024

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March 2026

Atmospheric Methane Removal Using Genetically Engineered Plants

Research enabling plants to remove methane from the atmosphere via genetic engineering

Eli Hornstein

June 2024

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June 2026

The Role of Rock Dust Copper in Atmospheric Methane Removal by Soils

Research to characterize the ability of soil amendments to increase methane removal and lower nitrous oxide emissions, and the effect of these amendments on microbial community activity and composition

Jeremy Semrau and Whendee Silver

September 2023

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April 2024

Advancing scientific understanding of the iron salt aerosol methane removal method, and related climate science

Quantifying Methane Removal by Cl and OH from CO Isotope Measurements

Observational study to quantify atmospheric oxidation of methane at regional and global scales

Thomas Röckmann

January 2025

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December 2026

Tropospheric Multiphase Reactive Halogen Evolution: CAPRAM-SPARK Model Development and Application to Field Observations

Improving our ability to model reactive atmospheric halogens

Hartmut Herrmann

December 2024

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November 2026

Chlorine Enhancement by Mineral Dust and its Effect on Methane: A Natural Experiment at the Cape Verde Observatory

Observational study quantifying the effect of mineral dust on methane oxidation

Lucy Carpenter

June 2025

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May 2027

Constraining the Size Distribution and Chlorine Production of Ferric Chloride Aerosols for Quantitative Atmospheric Methane Removal

Research quantifying the efficiency of ferric chloride aerosols in oxidizing methane

Mingyi Wang

January 2025

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December 2026

Iron Salt Atmospheric Methane Oxidation (ISAMO)

Research on advancing our understanding of existing atmospheric oxidation processes hypothesized to be naturally removing more atmospheric methane than previously studied

Matthew Johnson, Thomas Röckmann, Alfonso Saiz-Lopez, Natalie Mahowald, Peter Hess, Maarten van Herpen, Berend van de Kraats

January 2022

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December 2026

CHLOROXEA PR: Chlorine Oxidation Experiment, Atlantic, Puerto Rico

A continuation of the previously awarded CHLOROXEA to explore the iron salt aerosol mechanism through an aircraft and ground-based field measurement campaign

John Mak

January 2025

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December 2025

CHLOROXEA: Chlorine Oxidation Experiment, Atlantic

Research to advance understanding of the naturally-occurring iron salt aerosol mechanism in the North Atlantic through an aircraft field measurement campaign

John Mak

January 2024

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May 2025

Advancing scientific understanding and measurability of methane sinks

Ab Initio Calculation of Kinetic Isotope Effects (Kie) for Reaction of Ch4 with Oh, Cl, And O(¹d)– Improving the Constraints Needed to Monitor Atmospheric Ch4 Sinks

Research to better constrain the fingerprints of different atmospheric methane sinks

James Farquhar

September 2024

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August 2026

Satellite QUantification of EnvironmEntal oXidation (SQUEEX)

Assessment of the viability of detecting methane oxidation from satellites

Jos de Laat

September 2024

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June 2025

Methane Loss Rate Sensitivity to Emissions, Climate Change and Variability, and Key Uncertainties

Research assessing the impacts of climate change and changes to anthropogenic emissions on the hydroxyl radical sink

Arlene Fiore

June 2024

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May 2026

Marker Species and Aerosol Formation from Chlorine-initiated Oxidation in the Remote Atmosphere

Assessment of potential chlorinated-VOC marker species for studying atmospheric oxidation processes

Jesse Kroll

July 2024

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June 2026

Systems modeling

Implementation of a Spatially Revolved Methane Emission Scheme in an Earth System Model (CESM2) with a Possible Application Towards Atmospheric Methane Removal (AMR)

Research on advancing our understanding of spatially resolved methane emissions, removals, and impacts

Yangyang Xu

January 2023

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December 2023

Legal and Governance Research

The Legal Framework for Methane Removal

Research on legal frameworks to facilitate needed methane removal research and any subsequent deployment (if deemed appropriate), while ensuring that it occurs in a safe, responsible, and just manner

Romany Webb

August 2023

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July 2025

Near-term Warming Management

Near-term Warming Management, Beyond the Single Basket Mindset

Research on metric design to support management of both near-term and long-term warming in parallel

Gabrielle Dreyfus

Latest Grantees Updates

October 1, 2024

Announcing the Award Recipients from the Second Round of Exploratory Grants for Atmospheric Methane Removal

August 1, 2024

Announcing the Award Recipients from the First Round of Exploratory Grants for Atmospheric Methane Research

July 8, 2024

New Sabin Center Report Explores the Legal Framework for Atmospheric Oxidation Enhancement

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